Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
74393 (1998 XX56)
Classification: Main-belt Asteroid          SPK-ID: 2074393
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2375457765527837 5.1169e-08  
a 2.785156319051717 1.6102e-08 au
q 2.123554198421684 1.4418e-07 au
i 8.470052061582859 4.6775e-06 deg
node 91.1706702946308 3.7769e-05 deg
peri 259.7016170360525 3.8667e-05 deg
M 198.7293385091026 9.4316e-06 deg
tp 2459361.046297399384
(2021-May-26.54629740)
4.7563e-05 TDB
period 1697.746288956793
4.65
1.4723e-05
4.031e-08
d
yr
n .2120458176475872 1.8389e-09 deg/d
Q 3.44675843968175 1.9927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      646  
   data-arc span      7435 days (20.36 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59172  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:26:52  

Additional Information
 Earth MOID = 1.13648 au 
 Jupiter MOID = 2.0501 au 
 T_jup = 3.274 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO436303  
diameter diameter 6.110 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74393 (1998 XX56)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XX56 = 2002 RH130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 09:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin